Core Java Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java Interview Questions

Questions Answers Views Company eMail

What is difference between hashset and hashmap in java?

1016

What is collection sort in java?

946

What is toarray method in java?

1102

What is class array in java?

1055

What should I import for arraylist in java?

1035

What are the types of collections in java?

1056

How does arrays sort work in java?

1008

What is ordered map in java?

1007

What is array sorting in java?

1056

What is pangram in java?

1012

What sorting algorithm does javascript use?

987

What is java util collection?

1087

Can we sort array in java?

948

Can you sort a list in java?

982

What is a priority queue java?

992

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Un-Answered Questions { Core Java }

Explain method local inner classes ?

1034

What is an empty class? What functionality does it offer in Java?

1274

Can we change the value of static variable?

961

What is a layout manager and what are different types of layout managers available in java awt?

1246

How many characters is 2 bytes?

994

What do you understand by Header linked List?

1103

What is the use of bufferedreader?

996

What is the += operator called?

1061

Can we pass a primitive type by reference in java? How

933

If we don’t want some of the fields not to serialize how to do that?

1012

What is the loop in java?

1150

How many types of variables are there?

1130

Name four container classes.

989

What do you know about java?

940

Is 0 true or false in java?

986

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